Vol. 4, War Effort of New Zealand. Drew, H. T. B., The War Effort of New Zealand (Wellington: Whitcombe and Tombs Ltd., 1923)

b. WW1 Official Unit histories:

New Zealand Cyclist Corps in the Great war 1914-1918, by officers of the Regiment (Auckland: Whitcombe & Tombs, 1922)

Allen, S. S.,2/Auckland, 1918: being a partial record of the war service in France of the 2/Auckland Regiment during the Great War (Auckland: Whitcombe & Tombs, 1920)

Annabell, N., Official history of the New Zealand Engineers during the Great War 1914-1919 (Wanganui: Evans, Cobb & Sharpe, 1927)

Austin, W. S. (ed.), The official history of the New Zealand Rifle Brigade (the Earl of Liverpool's Own): covering the period of service with the New Zealand Expeditionary Force in the Great War from 1915 to 1919 (Wellington: L.T. Watkins, 1924)

Burton, O. E., The Auckland Regiment: being an account of the doings on active service if the First, Second and Third Battalions of the Auckland Regiment (Wellington: Whitcombe & Tombs, 1922)

Byrne, A. E., Official history of the Otago Regiment in the Great War, 1914-1918 (Dunedin: J. Wilkie, 1921)

Carbery, A. D., The New Zealand medical service in the Great War, 1914-1918 (Auckland: Whitcombe & Tombs, 1924)

Cowan, J., The Maoris in the Great War: a history of the New Zealand native contingent and Pioneer Battalion: Gallipoli, 1915: France and Flanders, 1916-1918 (Auckland: Whitcombe & Tombs [for] Maori Regimental Committee, 1926)

Kinloch, T., Devils on horses: in the words of the Anzacs in the Middle East, 1916-19 (Auckland: Exisle Pub., 2007)

Macdonald, A., On my way to the Somme: New Zealanders and the bloody offensive of 1916 (Auckland: HarperCollins, 2005)

McDonald, W., Honours and awards to the New Zealand Expeditionary Force in the Great War, 1914-1918 (Napier: H. McDonald, 2001)

McGibbon, I., Gallipoli: a guide to New Zealand battlefields and memorials (Auckland: Reed in association with the Ministry for Culture and Heritage, 2004)

McGibbon, I., New Zealand battlefields and memorials of the Western Front (Auckland: Oxford University Press in association with the History Group, Ministry for Culture and Heritage, 2001)

Puglsey, C., Gallipoli: the New Zealand story (Auckland: Reed, 1998)

Pugsley, C., The Anzac experience: New Zealand, Australia and Empire in the First World War (Auckland: Reed, 2004)

Pugsley, C., On the fringe of hell: New Zealanders and military discipline in the First World (Auckland: Hodder & Stoughton, 1991)

Smith, S. J., The Samoa (N.Z.) Expeditionary Force 1914-1915: an account based on official records of the seizure and occupation by New Zealand of the German islands of Western Samoa (Wellington: Ferguson & Osborn, 1924)